Have you done a battery stats wipe? First make sure you don't have a bunch of things running. If you are using a weather widget or an email app they will drain you as long as they are refreshing at a frequent rate. After you have double checked this then drain the battery down below 10% and wipe you battery stats in CWM red. Then charge back to 100%. These phones carry a memory for battery usage and you can wipe that. If that doesn't help then you are either using something that you don't realize or you didn't do a data wipe before you install. These phones do eat through the battery, keep that in mind. They are closer to mini computer than older style cell phone. If you have ever owned a laptop then you can understand what I mean about batter life. Still though you should be able to get a full day.
I use my phone frequently (sc2.9.1) and if I charge it over night, use it all day, and forget to charge it again over night I will be between 15-30 percent depending on my use. I am also not pushing email every 10 minutes and my weather widget gets refreshed when I manually push it.
